equivalent

myip=$(dig +short myip.opendns.com @resolver1.opendns.com)  # this will fetch my current IP
#myip=$(curl -s checkip.dyndns.org|sed -e 's/.*Current IP Address: //' -e 's/<.*$//')

mkdir -p "./tmp"
touch "./tmp/old_ip.txt"
removing_ip=$(cat ./tmp/old_ip.txt)
adding_ip=$myip

echo $adding_ip > ./tmp/old_ip.txt

equivalent

Refresh tests:

Using model from https://github.com/elastic/elasticsearch-rails/blob/15761247f3e99654bda946a178e50b5365414b59/elasticsearch-persistence/examples/music/album.rb

Model:

class Album
  include Elasticsearch::Persistence::Model
 index_name [Rails.application.engine_name, Rails.env].join('-')

equivalent

upstream mycoolapp {
  server unix:///var/run/puma.sock;
}

server {
  listen                80;
  server_name           www.my-cool-website.com;
    return 301 https://$host$request_uri;
}

equivalent

#require 'pry'        # pry gem for debugging
require 'forwardable' # core ruby lib.

# Don't mind this module, it's just for formating output of examples
module Article
  def self.h1(title)
    extended_title = "###### #{title} ######"
    puts "\n\n\n#{extended_title}\n"
    puts "=" * extended_title.length
  end

equivalent

require 'active_support/core_ext/module/delegation'
require 'active_support/core_ext/object/blank'
require 'rspec'

class Membership
  class MembershipCollection
    include Enumerable

    delegate :empty?, :each, to: :@members

equivalent

require 'rspec'
require 'time'
require 'active_support/time'

class Foo
  def float_range_example
    33 * 5 * Math::PI
  end

  def time_range

equivalent

require 'ansi'
require 'sqlite3'
require 'active_record'
require 'elasticsearch/model'
require 'paperclip'

require "paperclip/railtie"
Paperclip::Railtie.insert

ActiveRecord::Base.logger = ActiveSupport::Logger.new(STDOUT)

equivalent

require 'ansi'
require 'sqlite3'
require 'active_record'
require 'elasticsearch/model'

ActiveRecord::Base.logger = ActiveSupport::Logger.new(STDOUT)
ActiveRecord::Base.establish_connection( adapter: 'sqlite3', database: ":memory:" )

ActiveRecord::Schema.define(version: 1) do
  create_table :articles do |t|

equivalent

#!/usr/bin/env ruby
require "openssl"
require 'digest/sha2'
require 'base64'

# We use the AES 256 bit cipher-block chaining symetric encryption
alg = "AES-256-CBC"

# We want a 256 bit key symetric key based on some passphrase
digest = Digest::SHA256.new

equivalent

# run me with ruby >= 2.0

module A
  def x(arg)
    "hi #{arg}"
  end
end

module B
  def x(arg)